package com.usian.controller;

import com.usian.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RequestMapping("/user")
@RestController
public class UserController {

    @Autowired
    private RestTemplate restTemplate; //原生服务调用

    @Autowired
    private LoadBalancerClient loadBalancerClient;

    @RequestMapping("/findUserById")
    public User findUserById(Integer userId){

        //：找服务
        ServiceInstance instance = loadBalancerClient.choose("nacos-provider");
        //2:拼接请求地址
        String url = "http://"+instance.getHost()+":"+instance.getPort()+"/user/findUserByUserId/"+userId;
        //3:发起请求
        return restTemplate.getForObject(url, User.class);
    }
}
